More than 13 of people with mild COVID-19 are experiencing symptoms for up to three weeks.br According to experts, this includes more than 25 of young adults ages 18 to 34 years old.br Doctors report that the most common "persistent" symptom is a cough.br According to UPI, fatigue and fever are also present in patients for as long as 3 weeks after diagnosis.br 32 of adults ages 35 to 49 and 47 of those 50 and older reported long-term symptoms.br Preventative measures to protect yourself from exposure to the disease include wearing a face mask.br Physically distancing yourself from others by at least 6 feet and avoiding crowds are other ways to avoid exposure.